| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a golf club head in which the strength of a shaft fastening portion to which a shaft is fastened is secured and weight balance is improved. SOLUTION: A shaft fastening portion where a shaft fastening hole is penetrated from the top side to the sole side of a head body is provided in the heel side of the cast head body made up of a hollow casing, and a hollow portion is provided between the shaft fastening portion and the heel wall of the head body.</p> |
